<template>
  <div id="details">
    <!-- 头部 -->
    <div class="page-header">
      <div class="title">
        <p>{{productDetails.product_name}}</p>
        <div class="list">
          <ul>
            <li>
              <router-link to>概述</router-link>
            </li>
            <li>
              <router-link to>参数</router-link>
            </li>
            <li>
              <router-link to>用户评价</router-link>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <!-- 头部END -->

    <!-- 主要内容 -->
    <div class="main">
      <!-- 左侧商品轮播图 -->
      <div class="block">
        <el-carousel height="560px" v-if="productPicture.length>1">
          <el-carousel-item v-for="item in productPicture" :key="item.id">
            <img style="height:560px;" :src="item.product_picture" :alt="item.intro"/>
          </el-carousel-item>
        </el-carousel>
        <div v-if="productPicture.length === 1">
          <img
            style="height:560px;"
            :src="productPicture[0].product_picture"
            :alt="productPicture[0].intro"
          />
        </div>
      </div>
      <!-- 左侧商品轮播图END -->

      <!-- 右侧内容区 -->
      <div class="content">
        <h1 class="name">{{productDetails.product_name}}</h1>
        <p class="intro">{{productDetails.product_intro}}</p>
        <p class="store">小米自营</p>
        <div class="price">
          <span>{{productDetails.product_selling_price}}元</span>
          <span
            v-show="productDetails.product_price !== productDetails.product_selling_price"
            class="del"
          >{{productDetails.product_price}}元</span>
        </div>
        <div class="pro-list">
          <span class="pro-name">{{productDetails.product_name}}</span>
          <span class="pro-price">
            <span>{{productDetails.product_selling_price}}元</span>
            <span
              v-show="productDetails.product_price !== productDetails.product_selling_price"
              class="pro-del"
            >{{productDetails.product_price}}元</span>
          </span>
          <p class="price-sum">总计 : {{productDetails.product_selling_price}}元</p>
        </div>
        <!-- 内容区底部按钮 -->
        <div class="button">
          <el-button class="shop-cart" :disabled="dis">加入购物车</el-button>
          <el-button class="like">喜欢</el-button>
        </div>
        <!-- 内容区底部按钮END -->
        <div class="pro-policy">
          <ul>
            <li>
              <i class="el-icon-circle-check"></i> 小米自营
            </li>
            <li>
              <i class="el-icon-circle-check"></i> 小米发货
            </li>
            <li>
              <i class="el-icon-circle-check"></i> 7天无理由退货
            </li>
            <li>
              <i class="el-icon-circle-check"></i> 7天价格保护
            </li>
          </ul>
        </div>
      </div>
      <!-- 右侧内容区END -->
    </div>
    <!-- 主要内容END -->
  </div>
</template>

<script>
  export default {
    name: "Details",
    data() {
      return {
        dis: false, // 控制“加入购物车按钮是否可用”
        productID: "", // 商品id
        productDetails: "", // 商品详细信息
        productPicture: "" // 商品图片
      };
    },
    // 通过路由获取商品id
    created() {
      if (this.$route.query.productID) {
        this.productID = this.$route.query.productID;
      }
    },
    watch: {
      // 监听商品id的变化，请求后端获取商品数据
      productID: function (val) {
        this.getDetails(val);
        this.getDetailsPicture(val);
      }
    },
    methods: {
      getDetails() {
        const result = {
          "code": "001",
          "Product": [{
            "product_id": 1,
            "product_name": "Redmi K30",
            "category_id": 1,
            "product_title": "120Hz流速屏，全速热爱",
            "product_intro": "120Hz高帧率流速屏/ 索尼6400万前后六摄 / 6.67'小孔径全面屏 / 最高可选8GB+256GB大存储 / 高通骁龙730G处理器 / 3D四曲面玻璃机身 / 4500mAh+27W快充 / 多功能NFC",
            "product_picture": "http://106.15.179.105:3000/public/imgs/phone/Redmi-k30.png",
            "product_price": 2000,
            "product_selling_price": 1599,
            "product_num": 10,
            "product_sales": 0
          }]
        };
        this.productDetails = result.Product[0];
      },
      // 获取商品图片
      getDetailsPicture() {
        const result = {
          "code": "001",
          "ProductPicture": [{
            "id": 1,
            "product_id": 1,
            "product_picture": "http://106.15.179.105:3000/public/imgs/phone/picture/Redmi-k30-1.png",
            "intro": null
          }, {
            "id": 2,
            "product_id": 1,
            "product_picture": "http://106.15.179.105:3000/public/imgs/phone/picture/Redmi-k30-2.png",
            "intro": null
          }, {
            "id": 3,
            "product_id": 1,
            "product_picture": "http://106.15.179.105:3000/public/imgs/phone/picture/Redmi-k30-3.png",
            "intro": null
          }, {
            "id": 4,
            "product_id": 1,
            "product_picture": "http://106.15.179.105:3000/public/imgs/phone/picture/Redmi-k30-4.png",
            "intro": null
          }, {"id": 5, "product_id": 1, "product_picture": "http://106.15.179.105:3000/public/imgs/phone/picture/Redmi-k30-5.png", "intro": null}]
        };
        this.productPicture = result.ProductPicture;
      }
    }
  };
</script>

<style>
  /* 头部CSS */
  #details{
    margin-top: 50px;
  }
  #details .page-header {
    height: 64px;
    margin-top: -20px;
    z-index: 4;
    background: #fff;
    border-bottom: 1px solid #e0e0e0;
    -webkit-box-shadow: 0px 5px 5px rgba(0, 0, 0, 0.07);
    box-shadow: 0px 5px 5px rgba(0, 0, 0, 0.07);
  }

  #details .page-header .title {
    width: 1225px;
    height: 64px;
    line-height: 64px;
    font-size: 18px;
    font-weight: 400;
    color: #212121;
    margin: 0 auto;
  }

  #details .page-header .title p {
    float: left;
  }

  #details .page-header .title .list {
    height: 64px;
    float: right;
  }

  #details .page-header .title .list li {
    float: left;
    margin-left: 20px;
  }

  #details .page-header .title .list li a {
    font-size: 14px;
    color: #616161;
  }

  #details .page-header .title .list li a:hover {
    font-size: 14px;
    color: #ff6700;
  }

  /* 头部CSS END */

  /* 主要内容CSS */
  #details .main {
    width: 1225px;
    height: 560px;
    padding-top: 30px;
    margin: 0 auto;
    display: flex;
  }

  #details .main .block {
    float: left;
    width: 560px;
    height: 560px;
  }

  #details .el-carousel .el-carousel__indicator .el-carousel__button {
    background-color: rgba(163, 163, 163, 0.8);
  }

  #details .main .content {
    float: left;
    margin-left: 25px;
    width: 640px;
  }

  #details .main .content .name {
    height: 30px;
    line-height: 30px;
    font-size: 24px;
    font-weight: normal;
    color: #212121;
  }

  #details .main .content .intro {
    color: #b0b0b0;
    padding-top: 10px;
  }

  #details .main .content .store {
    color: #ff6700;
    padding-top: 10px;
  }

  #details .main .content .price {
    display: block;
    font-size: 18px;
    color: #ff6700;
    border-bottom: 1px solid #e0e0e0;
    padding: 25px 0 25px;
  }

  #details .main .content .price .del {
    font-size: 14px;
    margin-left: 10px;
    color: #b0b0b0;
    text-decoration: line-through;
  }

  #details .main .content .pro-list {
    background: #f9f9fa;
    padding: 30px 60px;
    margin: 50px 0 50px;
  }

  #details .main .content .pro-list span {
    line-height: 30px;
    color: #616161;
  }

  #details .main .content .pro-list .pro-price {
    float: right;
  }

  #details .main .content .pro-list .pro-price .pro-del {
    margin-left: 10px;
    text-decoration: line-through;
  }

  #details .main .content .pro-list .price-sum {
    color: #ff6700;
    font-size: 24px;
    padding-top: 20px;
  }

  #details .main .content .button {
    height: 55px;
    margin: 10px 0 20px 0;
  }

  #details .main .content .button .el-button {
    float: left;
    height: 55px;
    font-size: 16px;
    color: #fff;
    border: none;
    text-align: center;
  }

  #details .main .content .button .shop-cart {
    width: 340px;
    background-color: #ff6700;
  }

  #details .main .content .button .shop-cart:hover {
    background-color: #f25807;
  }

  #details .main .content .button .like {
    width: 260px;
    margin-left: 40px;
    background-color: #b0b0b0;
  }

  #details .main .content .button .like:hover {
    background-color: #757575;
  }

  #details .main .content .pro-policy li {
    float: left;
    margin-right: 20px;
    color: #b0b0b0;
  }

  /* 主要内容CSS END */
</style>
